From patchwork Thu Jan 23 09:21:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 11347113 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 89FCE13A4 for ; Thu, 23 Jan 2020 09:21:31 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 722BE2087E for ; Thu, 23 Jan 2020 09:21:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 722BE2087E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B47616FB6F; Thu, 23 Jan 2020 09:21:28 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id B04AC6FB6E for ; Thu, 23 Jan 2020 09:21:27 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id F4170B1F0; Thu, 23 Jan 2020 09:21:25 +0000 (UTC) From: Thomas Zimmermann To: airlied@linux.ie, daniel@ffwll.ch, kraxel@redhat.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, hdegoede@redhat.com, david@lechnology.com, noralf@tronnes.org, sean@poorly.run, oleksandr_andrushchenko@epam.com, sam@ravnborg.org, laurent.pinchart@ideasonboard.com, emil.velikov@collabora.com Subject: [PATCH v4 00/15] Use no_vblank property for drivers without VBLANK Date: Thu, 23 Jan 2020 10:21:08 +0100 Message-Id: <20200123092123.28368-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: xen-devel@lists.xenproject.org, Thomas Zimmermann , dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Instead of faking VBLANK events by themselves, drivers without VBLANK support can enable drm_crtc_vblank.no_vblank and let DRM do the rest. The patchset makes this official and converts over drivers. The current implementation looks at state of a device wrt vblanking. If vblanking has been initialized for the device, the driver is responsible for sending out VBLANK events. Otherwise, DRM will send out the event. The behaviour is selected by initializing no_vblank as part of drm_atomic_helper_check_modeset(). I went through all drivers, looking for those that call send out VBLANK events but do not call drm_vblank_init(). These are converted to the new semantics. This affects tiny drivers; drivers for virtual hardware; and a few others, which do not support interrupts. Xen comes with its own VBLANK logic and now disables no_vblank explictly. v4: * replaced drm_crtc_has_vblank() with drm_dev_has_vblank() (Daniel) * squashed patches 1 and 2 * moved driver updates into separate patches v3: * reorder and squash patches * set no_vblank in drm_atomic_helper_check_modeset() for *all* drivers (Daniel) * convert all drivers to new semnatics as necessary v2: * document functionality (Daniel) * cleanup ast (Daniel) * let simple-kms handle no_vblank where possible Thomas Zimmermann (15): drm: Initialize struct drm_crtc_state.no_vblank from device settings drm/arc: Remove sending of vblank event drm/ast: Don't set struct drm_crtc_state.no_vblank explictly drm/bochs: Remove sending of vblank event drm/cirrus: Remove sending of vblank event drm/gm12u320: Remove sending of vblank event drm/ili9225: Remove sending of vblank event drm/mipi-dbi: Remove sending of vblank event drm/qxl: Remove sending of vblank event drm/repaper: Remove sending of vblank event drm/st7586: Remove sending of vblank event drm/udl: Don't set struct drm_crtc_state.no_vblank explictly drm/vboxvideo: Remove sending of vblank event drm/virtio: Remove sending of vblank event drm/xen: Explicitly disable automatic sending of vblank event drivers/gpu/drm/arc/arcpgu_crtc.c | 16 -------------- drivers/gpu/drm/ast/ast_mode.c | 2 -- drivers/gpu/drm/bochs/bochs_kms.c | 9 -------- drivers/gpu/drm/cirrus/cirrus.c | 8 ------- drivers/gpu/drm/drm_atomic_helper.c | 10 ++++++++- drivers/gpu/drm/drm_mipi_dbi.c | 9 -------- drivers/gpu/drm/drm_vblank.c | 28 ++++++++++++++++++++++++ drivers/gpu/drm/qxl/qxl_display.c | 14 ------------ drivers/gpu/drm/tiny/gm12u320.c | 9 -------- drivers/gpu/drm/tiny/ili9225.c | 9 -------- drivers/gpu/drm/tiny/repaper.c | 9 -------- drivers/gpu/drm/tiny/st7586.c | 9 -------- drivers/gpu/drm/udl/udl_modeset.c | 11 ---------- drivers/gpu/drm/vboxvideo/vbox_mode.c | 12 ---------- drivers/gpu/drm/virtio/virtgpu_display.c | 8 ------- drivers/gpu/drm/xen/xen_drm_front_kms.c | 13 +++++++++++ include/drm/drm_crtc.h | 27 +++++++++++++++++------ include/drm/drm_simple_kms_helper.h | 7 ++++-- include/drm/drm_vblank.h | 1 + 19 files changed, 76 insertions(+), 135 deletions(-) --- 2.24.1